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Corollary

Corollary T1.1: No Universal Best Product - Selection Logic

There is no product that is best for everyone; only best matches for specific needs.

Aliases: T1.1

Definition

Corollary T1.1: No Universal Best Product: There is no product that is best for everyone; only best matches for specific needs.

Derived from

From T1 Matching Theorem: /en/wiki/theorem-1-matching

Core meaning (zh-aligned)

There is no single product that dominates for all users because weights and constraints differ. The right question is: “best match for this need profile.”

Practical usage

  • do not rely on global rankings without a need profile,
  • shortlist by your must-haves and constraints first,
  • then compute fit with explicit weights (M2).[^1]

References

  1. Keeney, R. L., & Raiffa, H. (1993). Decisions with Multiple Objectives: Preferences and Value Tradeoffs. Cambridge University Press.[source]
  2. Simon, H. A. (1955). A behavioral model of rational choice. Quarterly Journal of Economics, 69(1), 99–18.[source]

Further Reading